Windows DNS Queries Failing

I was putting together a PoC late last year and encountered an issue that I’ve not seen before that was caused by some functionality within Windows 2008 that I did not know existed at the time. In fact, no one who I’ve mentioned it to since knew about it either. It seemed sufficiently obscure that I thought I should write about it quickly. In the PoC, I had created a Windows domain based on Server 2008 R2. Setting that up was simple enough and I’d done it many times before. What I began to notice though was that DNS queries forwarded outside of my PoC infrastructure were failing more often than not. This made Microsoft Updates impossible to install amongst other issues. After fiddling with the DNS timeouts and talking with the hosting provider at the remote datacenter to no […]

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Windows 2003 Cluster failover email

I’ve lost track of the number of clusters that I have implemented or supported over the last few years. With each edition of Windows server that comes out clustering has improved. It was a bit of a dark art with Windows 2000 and in Windows 2008 it’s pretty much all point and click (and not many clicks at that). Most clusters that I encounter at the moment are still 2003. In a lot of organisations the joys of 2008 are still to come. Clustering in 2003 offers few built in options for notifying anybody that a resource group has moved or failed over to another node. Ideally, the fact that it has should not be any cause for alarm but there are occasions when it is useful to know. Fortunately for some a well trained piece of monitoring software running […]

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